Research on the Dynamic Sharing Scheme of Core Medical Information in the Cloud
SUN Tiankai
BAO Rong
ZHANG Renwei
Abstract：In view of the problems of deception and dishonesty in visual cryptography ,the dynamic sha‐ring scheme of core medical information in the cloud is studied and realized in this paper by taking the core medical information as the carrier and using the elliptic curve of prime number field .By selecting the appro‐priate parameters of elliptic curve ,the original information is encrypted once ,and the shared sub informa‐tion is encrypted and identified again with the private key in the elliptic curve encryption system .Through encryption ,dynamic sharing and Lagrange interpolation polynomial scheme ,the security and concealment of the existing scheme is improved to achieve the high efficiency and practicality of the secret information sha‐ring .The experimental results show that this scheme is also efficient in computation and information re‐trieval .
Keywords：elliptic curvevisual cryptographydynamic secret sharingidentity authentication
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 79-84 )